LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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hwc : Add support for ABC in MDP3

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In display list if one layer has same parameters
as framebuffer on index '0'. Use this layer
as FB and blit other layer(s) on top of it.

Change-Id: If38712781f24a2e27686d2b370643f51a9b05358
This commit is contained in:
Ramakant Singh
2014-04-16 11:09:40 +05:30
committed by Sravan Kumar D.V.N
parent 0def28c653
commit 467759fb28
3 changed files with 53 additions and 16 deletions
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32
libhwcomposer/hwc_copybit.cpp
View File

@@ -342,7 +342,7 @@ int CopyBit::clear (private_handle_t* hnd, hwc_rect_t& rect)
bool CopyBit::drawUsingAppBufferComposition(hwc_context_t *ctx,
hwc_display_contents_1_t *list,
int dpy) {
int dpy, int *copybitFd) {
int layerCount = 0;
uint32_t last = list->numHwLayers - 1;
hwc_layer_1_t *fbLayer = &list->hwLayers[last];
@@ -351,7 +351,7 @@ bool CopyBit::drawUsingAppBufferComposition(hwc_context_t *ctx,
if(ctx->enableABC == false)
return false;
if(ctx->listStats[dpy].numAppLayers != MAX_LAYERS_FOR_ABC )
if(ctx->listStats[dpy].numAppLayers > MAX_LAYERS_FOR_ABC )
return false;
layerCount = ctx->listStats[dpy].numAppLayers;
@@ -372,8 +372,32 @@ bool CopyBit::drawUsingAppBufferComposition(hwc_context_t *ctx,
}
if(ctx->listStats[dpy].renderBufIndexforABC == 0) {
if(layerCount == 1)
return true;
// Todo::same for two layers.
if(layerCount == MAX_LAYERS_FOR_ABC) {
// Pass the Acquire Fence FD to driver for base layer
int abcRenderBufIdx = ctx->listStats[dpy].renderBufIndexforABC;
private_handle_t *renderBuffer =
(private_handle_t *)list->hwLayers[abcRenderBufIdx].handle;
copybit_device_t *copybit = getCopyBitDevice();
if(list->hwLayers[abcRenderBufIdx].acquireFenceFd >=0){
copybit->set_sync(copybit,
list->hwLayers[abcRenderBufIdx].acquireFenceFd);
}
for(int i = 1; i < layerCount; i++){
int retVal = drawLayerUsingCopybit(ctx,
&(list->hwLayers[i]),renderBuffer, 0);
if(retVal < 0) {
ALOGE("%s : Copybit failed", __FUNCTION__);
}
}
// Get Release Fence FD of copybit for the App layer(s)
copybit->flush_get_fence(copybit, copybitFd);
close(list->hwLayers[abcRenderBufIdx].acquireFenceFd);
list->hwLayers[abcRenderBufIdx].acquireFenceFd = -1;
return true;
}
}
return false;
}
@@ -392,7 +416,7 @@ bool CopyBit::draw(hwc_context_t *ctx, hwc_display_contents_1_t *list,
return false ;
}
if(drawUsingAppBufferComposition(ctx, list, dpy)) {
if(drawUsingAppBufferComposition(ctx, list, dpy, fd)) {
return true;
}
//render buffer

4
libhwcomposer/hwc_copybit.h
View File

@@ -27,7 +27,7 @@
//twice
#define MAX_SCALE_FACTOR 16
#define MIN_SCALE_FACTOR 0.0625
#define MAX_LAYERS_FOR_ABC 1
#define MAX_LAYERS_FOR_ABC 2
namespace qhwc {
class CopyBit {
@@ -75,7 +75,7 @@ private:
struct copybit_device_t *mEngine;
bool drawUsingAppBufferComposition(hwc_context_t *ctx,
hwc_display_contents_1_t *list,
int dpy);
int dpy, int *fd);
// Helper functions for copybit composition
int drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_1_t *layer,
private_handle_t *renderBuffer, bool isFG);

19
libhwcomposer/hwc_utils.cpp
View File

@@ -1333,7 +1333,15 @@ int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
list->hwLayers[i].acquireFenceFd >= 0) {
if(UNLIKELY(swapzero))
acquireFd[count++] = -1;
// if ABC is enabled for more than one layer.
// renderBufIndexforABC will work as FB.Hence
// set the acquireFD from fd - which is coming from copybit
else if(fd >= 0 && (isAbcInUse(ctx) == true)) {
if(ctx->listStats[dpy].renderBufIndexforABC ==(int32_t)i)
acquireFd[count++] = fd;
else
continue;
} else
acquireFd[count++] = list->hwLayers[i].acquireFenceFd;
}
if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
@@ -1386,10 +1394,15 @@ int hwc_sync(hwc_context_t *ctx, hwc_display_contents_1_t* list, int dpy,
#ifdef QCOM_BSP
//If rotator has not already populated this field
// & if it's a not VPU layer
if((list->hwLayers[i].compositionType == HWC_BLIT)&&
// if ABC is enabled for more than one layer
if(fd >= 0 && (isAbcInUse(ctx) == true) &&
ctx->listStats[dpy].renderBufIndexforABC !=(int32_t)i){
list->hwLayers[i].releaseFenceFd = dup(fd);
} else if((list->hwLayers[i].compositionType == HWC_BLIT)&&
(isAbcInUse(ctx) == false)){
//For Blit, the app layers should be released when the Blit is
//complete. This fd was passed from copybit->draw
//For Blit, the app layers should be released when the Blit
//is complete. This fd was passed from copybit->draw
list->hwLayers[i].releaseFenceFd = dup(fd);
} else
#endif